Home / 6,919.22-9,546.30-4,086.70

Finding the Fourth Proportional to 6,919.22, 9,546.30 and 4,086.70

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Solution

The fourth proportional to 6,919.22, 9,546.30 and 4,086.70 is: 5,638.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.22 : 9,546.30 = 4,086.70 : x
  2. Step 2: Convert to fraction form
    6,919.22/9,546.30 = 4,086.70/x
  3. Step 3: Cross multiply
    6,919.22x = 9,546.30 × 4,086.70
  4. Step 4: Simplify right side
    6,919.22x = 39,012,864.21
  5. Step 5: Solve for x
    x = 39,012,864.21/6,919.22
  6. Step 6: Final answer
    x = 5,638.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.